Motor-truck.



J.` H. GO'ODRICH..

MOTOR TRUCKl APPLICATION FILED IKN. 4, |916.

Patented oei; 9,1917.

2 SHEETS-SHEET I Wi I J. H. GOODRICH.

MOTOR TRUCK.

APPLICATION men JAN. 4. 1916.

W2 nu Ty ilrT. rfa M 9M lv r ML ew @Lw am WQJWLM .mu wl JOSEPH H. GOODRICH, F TURLOCK, CALIFORNIA.

Moron-TRUCK l Specification of Letters Patent.

Application led January 4, 1916. Serial No. 70,130.

To all whom t may concern:

Be it known that I, JOSEPH H. GooDRIoH, a citizen of the United States,- residing at lTurlock, in the county of Stanislaus and section on the line State of California, have invented new and useful Improvements in Motor-Trucks, of which the following is a specication.

The object ofthe present invention is to provide an improved motor truck having a body the rear portion of which 1s close to the 1 ground, so that it can be loaded and unloaded easily, while the rear wheels are of a height such as iscommon in motor trucks, and especially in such a truck to provide means for resiliently supporting the truck u'pon its rear wheels.

In the accompanylng drawing, Figure 1 is a side view of my improved motor truck;

Fig. 2 is a plan view thereof; Fig. 3 is a* transverse vertical section thereof on the line 3-3 of Fig. 2; Fig. 4 is an enlarged broken longitudinal view showing part of the power-transmitting mechanism; Fig. 5 is a vertical section on the line 5 5 of Fig.

4; Fig. 6 is a broken horizontal section on the line 6-6 of Fi 4; Fig. 7 is a vertical 7 7 of Fig. 4, parts being omitted.

Referring to the drawing, 1 indicates the body of a motor truck, mounted on front wheels 2 and rear wheels 3. The motor, not shown, of said truck has a shaft 4 connected with a differential shaft 5, carrying at each end a bevel gear 6 meshing with a bevel pinion 7 upon a longitudinal shaft 8, supported in bearings 9 in a lframe 10, which frame at its front end surrounds the bevel gear 6 and is supported on the end of the differential shaft. At its rear end it is formed integral with a central spindle 11, about which revolve rollers 12 confined at theirends between rings 13 and 14. Surrounding said.

rollers is a tube 16 and surrounding the tube is the hub 17 of lthe rear wheel 3. saidhub having inner and outer parallel flanges 18 between which are secured the inner ends of spokes 19 of the wheel. A washer 20 secured by a nut 21 upon a reduced threaded portion of the spindle serves to retain the hub in place.

Said hub at its inner end is formed with a worm wheel 22, which is'engaged by a worm 23 on the longitudinal shaft 8. Annular plates 24 surrounding the hub and a semilcylindrical cover 26 form ya housing for the worm wheel, the lower portion of.

Patented Oct. 9, 1917,' 4

which housing contains oil supplied through an opening 27 in the semi-cylindrical cover, through which oil the worm wheel rotates.

By means of the power of the' motor shaft transmitted through the differential shaft, the bevel gears 6, bevel pinions 7, shafts 8, worms 23 and worm wheels 22, the rear wheels are rotated. Because of the tendency of the worm 23, pressing against the worm wheel 22, to thrust said worm wheel inward, I provide a ring, of balls 28 for each rear wheel in a runway 29 yin the Extending rearwardly from the casing is an upright 31, having a-n enlarged .upper end 32, upon which rests the vmiddle portion of a carriage spring 34, upon the ends of which rest a bar 35 secured to the body of the motor truck. Extending rearwardly from said upright is an arcuate guide piece 36, which can move in a groove37 formed in an are about the axis of the differential shaft as center, said groove being formed by a channel-iron 38 in which is received the Iwhile at the same time said body is resiliently supportedluponthewheels, and said rear wheels can have `a diHerential movement to permit the motor truck to easily turn.

I claim: I

1. In a motor truck, the combination of rear wheels, a differential shaft, a frame at each side of the truck mounted to swing about the axis of the differential shaft, a shaft carried by said frame, an operative connection between the front end of said latter shaft and the differential shaft, an operative connection between the rear end of said latter shaft and the adjacent 4rear wheel, and rings surrounding the hubs of the rear wheels and forming'with the frames oil chambers in which said last-named oper-- rear wheels, a di'eren-tial shaft, a e at eacb side of the truck mounted to swing about the axis of the differential shaft, a shaft carried by Said frame, an operative connection between the front end of said latter Shaft and the differential shaft, an operative connection bet-Ween the rear end ot' said latter shaft and the adjacent rear wheel, rings surrounding the hubs of the rear Wheels and forming With the frames oil chambers in which said last-named operative connections are Contained, uprights formed integral with the frames, carriage springs supported by said uprigbts, a truck body supported by said carriage springs, guides extending from tbe uprights, and guideways secured to the truck body yand in which said guides'move.

3. `Tn a motor truck, tbe combination of rear Wheels, a differential shaft, a frame at each side of the truck, extending rearwardly from, and mounted to swing about the axis of, the differential shaft, a Shaft carried by said frame, an operative connection between the front of said latter shaft and the differential shaft, an operative Connection between the rear end of said latter shaft and the adjacent rear wheel, a truck body, a spring for supporting each side of the truck body, and, rigidlyl related to )each frame, a housing for inelosing the last named operative connection and for supporting said spring. v

In testimony whereof I have hereunto set my liand'in the presence of two subscribing Witnesses.

JOSEPH H. GOODRICH.

Witnesses:

F. WRIGHT, D. B. RICHARDS. 

